Energy technologies have been greatly shaping society and the environment for the past
two centuries. In fact, modern civilizations are largely dependent on fossil fuel energy technologies, which make high-density urban settlements possible. While technological
progress has eliminated many problems, it has also added new and often unexpected ones. Emissions of greenhouse gases (GHGs) arising from the
combustion of fossil fuels have been the main cause of anthropogenic global warming. All
energy technologies, whether they are fossil-based or not, consume resources, use land and boundaries are being breached for a range of essential Earth-system processes, including
in terms of global warming and biodiversity loss, which is likely to lead to catastrophic
environmental change.

Despite two decades of climate change policies; thousands of programmes,
initiatives, regulations, market-based instruments and international agreements; and the
disbursement of hundreds of billions of dollars in subsidies, funds, research and development (R&D) efforts and development aid, the declared goal of establishing a renewable
low-carbon energy system on a global scale remains elusive. In 2005, fossil fuels accounted
for 85 per cent of the global primary energy mix, while
low-carbon nuclear power accounted for 6 per cent, hydroelectricity for 3 per cent and biomass for 4 per cent.
Modern renewables jointly accounted for less than 1 per cent.
Global CO2
emissions have increased at an annual rate of more than 3 per
cent, considerably faster than in previous decades. The past
decade was the first in two centuries with increasing CO2
emissions intensities, owing
to a “coal revival”, in contrast with the rapid conversion to natural gas in the 1990s. In
2010, the global share of coal reached an estimated 29 per cent, which in relative terms
was higher than, and in absolute terms about twice as large as, at the time of the first
oil crisis, in 1973.
In the 2000s, China alone added more coal power capacity each year
than the total installed capacity in the United Kingdom of Great Britain and Northern
Ireland. These trends, which are diametrically opposed to declared greenhouse gas mitigation goals and targets, are by no means
limited to emerging economies. Even in Germany, a country with one of the most ambitious Government goals for greenhouse gas mitigation, 10 coal power plants were under
construction and another 12 coal power plants were in the pipeline. These fossil-fuel-based capacities will remain operational for decades and make
greenhouse gas reduction efforts increasingly difficult.
In contrast with the actual trend of ever more rapid increases in greenhouse
gas emissions, global emissions would need to be reduced by 50-80 per cent by 2050 and
turn negative in the second half of this century, in order to
stabilize CO2 concentrations at about 450 parts per million by volume (ppmv), a target recommended by the
Intergovernmental Panel on Climate Change (IPCC) and agreed upon at the sixteenth
session of the
Conference of the Parties to the United Nations Framework Conventionon Climate Change, held in Cancun, Mexico, from 29 November to 10 December 2010.
Essentially, this would require
making the power and transport sector carbon-free worldwide by mid-century, in view of the limitations associated with replacing industrial processes based on fossil fuels. Today’s
CO2 emitting devices and infrastructures alone imply
cumulative emissions of about 496 gigatons (Gt) of CO2 from 2010 and 2060, leading to
atmospheric concentrations of about 430 ppmv (Davis, Caldeira and Matthews, 2010). In
other words, even
an immediate global stop to building new fossil-fired capacities would
lead close to the envisaged global target of 450 ppmv by mid-century. This puts into
perspective the enormous ambition of the global target, given the long-lived capital stock
and rapidly
rising energy demand.
At the same time, about 40 per cent of humanity, or 2.7 billion people, continues to rely on traditional biomass, such as wood, dung and charcoal.
Air pollution from
inefficient stoves leads to an estimated 1.5 million premature deaths per year, more than
from malaria, tuberculosis or HIV. About one fifth of humanity or 1.4 billion people, continues to live without access to electricity, mainly in South Asia and sub-Saharan Africa
(International Energy Agency, United Nations Development Programme and United
Nations Industrial Development Organization, 2010). Many more, especially in urban
areas, have access but cannot afford to make full use of it.
The
United Nations Secretary-General’s Advisory Group on Energy and Climate Change proposed
the goal of universal
access to modern energy services by 2030 (United Nations, 2010a). It is important to
note that bringing
universal access to modern energy services to almost 3 billion people
would require only about 3 per cent higher
electricity generation, less than 1 per cent more
demand for oil and less than 1 per cent more CO2
by 2030 (
International Energy Agency,
United Nations Development Programme and
United Nations Industrial DevelopmentOrganization, 2010). Thus, the development aspirations of the world’s poor are not in
conflict with efforts to solve the climate problem. The 500 million richest people, who
constitute only 7 per cent of the world population, are responsible for half of all greenhouse
emissions. They live in every country of the world and earn more than the average citizen
of the United States of America. In contrast, the poorest 3.1 billion people are responsible
for only 5-10 per cent of the total.
The
global energy challenge is immense, as evidenced by the multiple global
objectives explored by the
Global Energy Assessment (GEA): (a) to
ensure universal access to electricity and modern cooking fuels by 2030; (b) to
reduce premature deaths due to air pollution by 50 per cent by 2030; (c) to limit global average temperature change to 2° C above pre-industrial levels by 2100 (with a probability of
greater than 50 per cent); and (d) to establish energy security, for example, to limit energy
trading and increase diversity and resilience of energy supply by 2050. Meeting GEA objectives requires a complete transformation of the global energy technology system in the
course of one generation, which is a considerably shorter time-frame than was the case for
historical
energy transitions. Governments have called for
concerted actions to acceleratetechnology change towards cleaner energy technology. Many technology optimists believe
such acceleration is essential and have in this regard coined the term “
energy technologyinnovation imperative”.
Innovation in this context encompasses the full
spectrum ranging from incremental improvements to radical breakthroughs and from
technologies and infrastructure to social institutions and individual behaviours.
Simplistic solutions dominate present national and global debates on how to
meet the
energy technology innovation imperative. Technology optimists suggest “big
push” policies to scale up available technologies. Others focus on market incentives and
hope that the necessary technological transformation will come about by “getting prices
right” through internalizing environmental externalities. Several Governments in Asia are
pursuing
energy technology-focused industrial policies, with mostly positive developmental benefits. However, evidence suggests that none of these approaches has the potential
to sufficiently
accelerate energy technology change on the required global scales. Indeed,
most Government
energy technology programmes and private sector projects have not
met their overambitious goals in recent decades. Reality checks are needed to enable
Governments to devise better policies and programmes at scales commensurate with the
challenge. Better-focused and greater
efforts to move to cleaner and renewable energy will
be needed to ensure climate stabilization while allowing developing countries to satisfy
their rapidly increasing demand for commercial energy which is linked to their development aspirations. Historically, such huge challenges were addressed consecutively rather
than concurrently
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